The Dublin Fire Brigade tweeted images from the scenes of a fire, which started because a phone was left charging in a handbag.

“It is important that mobile phones are not covered whilst charging, and the heat allowed to dissipate,” the Dublin Fire Brigade wrote.

This isn’t the first time that the service has issued warnings about charging phones. It also warned against placing phones under pillows while they are charging. While you may want to use your phone to track your sleep cycle, the heat produced while charging needs somewhere to go.

We believe the damage caused here was by a mobile phone charging in or on a handbag which was placed on the chairs. pic.twitter.com/bnP3CcBhMF